心房室静脉: atrioventricular veins of heartvenae atrioventriculares cordis
乱: Ⅰ形容词1.(无秩序; 无条理) in a mess; confused; disordered 短语和例子杂乱 motley; 混乱 in confusion; 乱纷纷 very disordered; in a hopeless mess; 你的房间那么乱, 收拾一下吧。 your room is in a mess, please tidy it up. 这里太乱,
